/* ============================================================
   GRUPO CASTMEDIA — Sistema de diseño web v1
   Navy fílmico · Rojo REC · Satoshi/Inter · firma: sistema ●REC
   ============================================================ */

:root{
  --navy:#0D1B2A;
  --navy-2:#0A1622;          /* profundidad */
  --card:#142639;
  --card-2:#16283A;
  --rojo:#E30613;
  --rojo-dim:#B0050F;
  --blanco:#FFFFFF;
  --niebla:#B8C2CC;          /* texto secundario sobre navy */
  --niebla-2:#8E9BA8;
  --pantalla:#F5F7FA;        /* secciones claras frías */
  --tinta:#16263B;           /* titulares sobre claro */
  --slate:#475569;           /* cuerpo sobre claro */
  --linea:rgba(184,194,204,.14);
  --linea-clara:rgba(22,38,59,.12);

  --f-display:'Satoshi','Helvetica Neue',Arial,sans-serif;
  --f-body:'Inter','Helvetica Neue',Arial,sans-serif;

  --w-max:1180px;
  --pad-x:clamp(1.25rem,4vw,3rem);
  --sec-y:clamp(4.5rem,9vw,7.5rem);
  --radius:14px;
  --t-fast:.25s cubic-bezier(.4,0,.2,1);
}

/* ---------- Reset mínimo ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html.lenis{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto}
body{
  font-family:var(--f-body);
  background:var(--navy);
  color:var(--blanco);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}

::selection{background:var(--rojo);color:var(--blanco)}

:focus-visible{outline:2px solid var(--rojo);outline-offset:3px;border-radius:4px}

/* ---------- Grain fílmico global ---------- */
body::after{
  content:"";position:fixed;inset:-50%;z-index:2000;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  animation:grain 9s steps(8) infinite;
}
@keyframes grain{
  0%,100%{transform:translate(0,0)} 12%{transform:translate(-3%,2%)}
  25%{transform:translate(2%,-3%)} 37%{transform:translate(-2%,-2%)}
  50%{transform:translate(3%,3%)} 62%{transform:translate(-3%,1%)}
  75%{transform:translate(2%,2%)} 87%{transform:translate(-1%,-3%)}
}

/* ---------- Utilidades ---------- */
.wrap{max-width:var(--w-max);margin:0 auto;padding-left:var(--pad-x);padding-right:var(--pad-x)}
.sec{padding-top:var(--sec-y);padding-bottom:var(--sec-y);position:relative}
.sec--clara{background:var(--pantalla);color:var(--tinta)}
.sec--clara .sec-eyebrow{color:var(--rojo)}
.sec--clara p{color:var(--slate)}

.sec-eyebrow{
  display:flex;align-items:center;gap:.55rem;
  font-size:.78rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--niebla);margin-bottom:1.1rem;
}
.sec-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--rojo);flex:none}

h1,h2,h3{font-family:var(--f-display);line-height:1.04;letter-spacing:-.015em;font-weight:900}
h1{font-size:clamp(2.5rem,6.2vw,4.6rem)}
h2{font-size:clamp(1.9rem,4.2vw,3.1rem);margin-bottom:1.4rem}
h3{font-size:clamp(1.15rem,2vw,1.45rem);font-weight:700;letter-spacing:-.01em}
.lead{font-size:clamp(1.02rem,1.5vw,1.2rem);color:var(--niebla);max-width:46ch}
.sec--clara .lead{color:var(--slate)}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:var(--f-display);font-weight:700;font-size:.98rem;
  padding:.95rem 1.7rem;border-radius:999px;
  transition:transform var(--t-fast),background var(--t-fast),box-shadow var(--t-fast),color var(--t-fast);
  will-change:transform;
}
.btn--rojo{background:var(--rojo);color:var(--blanco)}
.btn--rojo:hover{background:var(--rojo-dim);transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(227,6,19,.55)}
.btn--ghost{border:1px solid rgba(255,255,255,.32);color:var(--blanco)}
.btn--ghost:hover{border-color:var(--blanco);transform:translateY(-2px)}
.sec--clara .btn--ghost{border-color:rgba(22,38,59,.3);color:var(--tinta)}
.sec--clara .btn--ghost:hover{border-color:var(--tinta)}
.btn .ic{width:1.05em;height:1.05em;flex:none}

/* ---------- Nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  transition:background var(--t-fast),box-shadow var(--t-fast),padding var(--t-fast);
  padding:1.15rem 0;
}
.nav.is-scrolled{background:rgba(10,22,34,.86);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--linea);padding:.7rem 0}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.nav-logo img{height:34px;width:auto}
.nav-links{display:flex;align-items:center;gap:1.9rem;font-size:.92rem;font-weight:500}
.nav-links a{color:var(--niebla);transition:color var(--t-fast);position:relative}
.nav-links a:hover,.nav-links a.is-active{color:var(--blanco)}
.nav-links a.is-active::before{
  content:"";position:absolute;left:-13px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--rojo);
  animation:recblink 1.6s ease-in-out infinite;
}
.nav-cta{flex:none}
.nav-burger{display:none;flex-direction:column;gap:5px;padding:.5rem}
.nav-burger span{display:block;width:24px;height:2px;background:var(--blanco);transition:transform var(--t-fast),opacity var(--t-fast)}

.nav-drop{position:relative}
.nav-drop>a::after{content:"▾";font-size:.7em;margin-left:.35rem;opacity:.7}
.nav-drop-menu{
  position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%) translateY(8px);
  background:var(--card);border:1px solid var(--linea);border-radius:12px;
  padding:.6rem;min-width:200px;display:grid;gap:.15rem;
  opacity:0;visibility:hidden;transition:opacity var(--t-fast),transform var(--t-fast),visibility var(--t-fast);
}
.nav-drop:hover .nav-drop-menu,.nav-drop:focus-within .nav-drop-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav-drop-menu a{display:block;padding:.55rem .8rem;border-radius:8px;color:var(--niebla)}
.nav-drop-menu a:hover{background:rgba(255,255,255,.06);color:var(--blanco)}

/* ---------- REC system (firma) ---------- */
@keyframes recblink{0%,100%{opacity:1}50%{opacity:.25}}
.rec{
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.78rem;font-weight:600;letter-spacing:.18em;color:var(--niebla);
}
.rec .dot{width:9px;height:9px;border-radius:50%;background:var(--rojo);animation:recblink 1.6s ease-in-out infinite}
.rec .tc{font-variant-numeric:tabular-nums;letter-spacing:.12em}

/* ---------- Hero ---------- */
.hero{
  min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;
  position:relative;overflow:hidden;padding-bottom:clamp(3rem,7vh,5rem);
}
.hero-media{position:absolute;inset:0;z-index:-2}
.hero-media video,.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-scrim{position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(13,27,42,.55) 0%,rgba(13,27,42,.35) 38%,rgba(13,27,42,.92) 100%)}
.hero-top{position:absolute;top:6.2rem;left:0;right:0}
.hero-top .wrap{display:flex;justify-content:space-between;align-items:center}
.hero-content{position:relative}
.hero h1{max-width:13ch}
.hero h1 .linea-roja{color:var(--rojo)}
.hero-sub{margin-top:1.4rem;font-size:clamp(1rem,1.6vw,1.22rem);color:var(--niebla);max-width:52ch}
.hero-ctas{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2.2rem}

/* hero interior (páginas) */
.hero--int{min-height:72svh}
.hero--int .hero-logo-unidad{height:clamp(44px,6vw,64px);width:auto;margin-bottom:1.6rem}

/* ---------- Placeholders inteligentes ---------- */
.ph{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.8rem;
  background:
    radial-gradient(120% 90% at 70% 10%,rgba(227,6,19,.10),transparent 55%),
    linear-gradient(160deg,var(--card) 0%,var(--navy-2) 100%);
  border:1px dashed rgba(184,194,204,.28);
  text-align:center;padding:1.5rem;
}
.ph .rec{color:var(--niebla)}
.ph-file{
  font-family:ui-monospace,'Cascadia Mono',Consolas,monospace;
  font-size:.82rem;color:var(--blanco);background:rgba(255,255,255,.07);
  padding:.4rem .8rem;border-radius:6px;letter-spacing:.02em;
}
.ph-spec{font-size:.78rem;color:var(--niebla-2);max-width:34ch;line-height:1.5}
.media-frame{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:3/2;background:var(--card)}
.media-frame--retrato{aspect-ratio:4/5}
.media-frame>img,.media-frame>video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.media-frame>img.is-missing,.media-frame>video.is-missing{visibility:hidden}
.media-frame .ph{display:none}
.media-frame.is-ph .ph{display:flex}
.hero .ph{border:none}

/* ---------- Bifurcación (home) ---------- */
.bifurca{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;margin-top:2.4rem}
.bif-card{
  position:relative;display:block;border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(150deg,var(--card) 0%,var(--navy-2) 100%);
  border:1px solid var(--linea);padding:2.2rem 2rem 2rem;
  transition:transform var(--t-fast),border-color var(--t-fast),box-shadow var(--t-fast);
}
.bif-card:hover{transform:translateY(-5px);border-color:rgba(227,6,19,.45);box-shadow:0 26px 50px -28px rgba(0,0,0,.7)}
.bif-card .sec-eyebrow{margin-bottom:.8rem}
.bif-card h3{font-size:clamp(1.4rem,2.4vw,1.9rem);margin-bottom:.7rem}
.bif-card p{color:var(--niebla);font-size:.97rem;max-width:40ch}
.bif-card .bif-go{margin-top:1.5rem;display:inline-flex;align-items:center;gap:.5rem;font-weight:700;font-family:var(--f-display)}
.bif-card .bif-go .fl{transition:transform var(--t-fast)}
.bif-card:hover .bif-go .fl{transform:translateX(5px)}
.bif-card:hover .bif-go{color:var(--rojo)}

/* ---------- Tarjetas de unidades ---------- */
.unidades{display:grid;grid-template-columns:repeat(2,1fr);gap:1.3rem;margin-top:2.6rem}
.uni-card{
  display:block;background:var(--card-2);border:1px solid var(--linea);border-radius:var(--radius);
  padding:1.9rem 1.8rem;transition:transform var(--t-fast),border-color var(--t-fast),background var(--t-fast);
}
.uni-card:hover{transform:translateY(-4px);border-color:rgba(227,6,19,.4);background:#182C42}
.uni-card img{height:42px;width:auto;margin-bottom:1.1rem}
.uni-card p{color:var(--niebla);font-size:.95rem}
.uni-card .uni-go{margin-top:1rem;font-size:.85rem;font-weight:700;color:var(--niebla-2);font-family:var(--f-display);letter-spacing:.06em;transition:color var(--t-fast)}
.uni-card:hover .uni-go{color:var(--rojo)}

/* ---------- Pruebas (3 columnas) ---------- */
.pruebas{display:grid;grid-template-columns:repeat(3,1fr);gap:2.2rem;margin-top:2.6rem}
.prueba .pico{
  width:50px;height:50px;border-radius:50%;background:var(--rojo);
  display:flex;align-items:center;justify-content:center;margin-bottom:1.2rem;
}
.prueba .pico svg{width:22px;height:22px;fill:var(--blanco)}
.prueba h3{margin-bottom:.6rem}
.prueba p{color:var(--niebla);font-size:.95rem}

/* ---------- Franja credencial ---------- */
.cred{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center}
.cred blockquote{
  font-family:var(--f-display);font-weight:700;font-size:clamp(1.3rem,2.4vw,1.8rem);
  line-height:1.3;letter-spacing:-.01em;
}
.cred blockquote em{color:var(--rojo);font-style:normal}
.cred-nota{margin-top:1.2rem;color:var(--niebla);font-size:.95rem}

/* ---------- Escenarios / duales ---------- */
.tarjetas-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:2.6rem}
.esc-card{background:var(--blanco);border:1px solid var(--linea-clara);border-radius:var(--radius);overflow:hidden;
  box-shadow:0 10px 28px -18px rgba(22,38,59,.25)}
.esc-card .media-frame{border-radius:0;aspect-ratio:16/10}
.esc-card .esc-body{padding:1.4rem 1.4rem 1.6rem}
.esc-card h3{color:var(--tinta);margin-bottom:.5rem;font-size:1.12rem}
.esc-card p{color:var(--slate);font-size:.92rem}

.dual{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;margin-top:2.4rem}
.dual-col{background:var(--blanco);border:1px solid var(--linea-clara);border-radius:var(--radius);padding:1.8rem 1.7rem;
  box-shadow:0 10px 28px -18px rgba(22,38,59,.22)}
.dual-col .sec-eyebrow{color:var(--rojo);margin-bottom:.9rem}
.dual-col h3{color:var(--tinta);margin-bottom:.8rem}
.dual-col ul{display:grid;gap:.6rem}
.dual-col li{color:var(--slate);font-size:.94rem;padding-left:1.15rem;position:relative}
.dual-col li::before{content:"";position:absolute;left:0;top:.52em;width:6px;height:6px;border-radius:50%;background:var(--rojo)}

/* ---------- Sistema conectado (página unidad) ---------- */
.conexion{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:2.2rem}
.conx{background:var(--card-2);border:1px solid var(--linea);border-radius:12px;padding:1.3rem 1.25rem}
.conx img{height:30px;width:auto;margin-bottom:.8rem}
.conx p{color:var(--niebla);font-size:.88rem}

/* ---------- Filtro para quién ---------- */
.quien{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;margin-top:2.2rem}
.quien-col{border-radius:var(--radius);padding:1.7rem 1.6rem;border:1px solid var(--linea)}
.quien-col.si{background:rgba(227,6,19,.06);border-color:rgba(227,6,19,.3)}
.quien-col h3{margin-bottom:.9rem}
.quien-col ul{display:grid;gap:.55rem}
.quien-col li{color:var(--niebla);font-size:.94rem;padding-left:1.2rem;position:relative}
.quien-col li::before{content:"—";position:absolute;left:0;color:var(--niebla-2)}
.quien-col.si li::before{content:"●";color:var(--rojo);font-size:.6em;top:.45em}

/* ---------- CTA final ---------- */
.cta-final{text-align:left}
.cta-final h2{max-width:22ch}
.cta-final .lead{margin-bottom:2rem}

/* ---------- Formulario contacto ---------- */
.form-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:start;margin-top:2.4rem}
.form{display:grid;gap:1.05rem}
.segmento{display:grid;grid-template-columns:1fr 1fr;gap:.7rem}
.seg-btn{
  border:1px solid var(--linea);border-radius:10px;padding:.95rem;text-align:center;
  font-family:var(--f-display);font-weight:700;color:var(--niebla);transition:all var(--t-fast);
}
.seg-btn.is-on{background:var(--rojo);border-color:var(--rojo);color:var(--blanco)}
.campo label{display:block;font-size:.8rem;font-weight:600;letter-spacing:.06em;color:var(--niebla);margin-bottom:.4rem;text-transform:uppercase}
.campo input,.campo select{
  width:100%;background:var(--card);border:1px solid var(--linea);border-radius:10px;
  padding:.9rem 1rem;color:var(--blanco);font:inherit;transition:border-color var(--t-fast);
}
.campo input:focus,.campo select:focus{outline:none;border-color:var(--rojo)}
.campo select option{background:var(--card);color:var(--blanco)}
.form .btn{justify-content:center;width:100%}
.form-nota{font-size:.82rem;color:var(--niebla-2)}
.contacto-directo{background:var(--card);border:1px solid var(--linea);border-radius:var(--radius);padding:2rem 1.9rem}
.contacto-directo h3{margin-bottom:.4rem}
.contacto-directo .tel{font-family:var(--f-display);font-weight:900;font-size:1.7rem;letter-spacing:-.01em;margin:.8rem 0 1.2rem;display:block}
.contacto-directo p{color:var(--niebla);font-size:.93rem}

/* ---------- WhatsApp flotante ---------- */
.wa-float{
  position:fixed;right:1.3rem;bottom:1.3rem;z-index:900;
  width:56px;height:56px;border-radius:50%;background:var(--rojo);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 30px -10px rgba(227,6,19,.55);
  transition:transform var(--t-fast),background var(--t-fast);
}
.wa-float:hover{transform:translateY(-3px) scale(1.05);background:var(--rojo-dim)}
.wa-float svg{width:26px;height:26px;fill:var(--blanco)}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--linea);padding:3.5rem 0 2.2rem;background:var(--navy-2)}
.footer-top{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:2.5rem;align-items:start}
.footer-logo img{height:38px;width:auto;margin-bottom:1rem}
.footer-slogan{display:flex;align-items:center;gap:.5rem;font-size:.78rem;letter-spacing:.2em;color:var(--niebla-2);text-transform:uppercase}
.footer h4{font-family:var(--f-display);font-size:.85rem;letter-spacing:.12em;text-transform:uppercase;color:var(--niebla-2);margin-bottom:1rem}
.footer-col ul{display:grid;gap:.55rem}
.footer-col a{color:var(--niebla);font-size:.93rem;transition:color var(--t-fast)}
.footer-col a:hover{color:var(--blanco)}
.footer-bottom{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--linea);
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.82rem;color:var(--niebla-2)}

/* ---------- Reveals (progressive enhancement) ---------- */
html.js [data-reveal]{opacity:0;transform:translateY(26px)}
html.js [data-reveal].is-in{opacity:1;transform:none;transition:opacity .8s cubic-bezier(.22,1,.36,1),transform .8s cubic-bezier(.22,1,.36,1)}
html.js [data-split] .char{display:inline-block}

/* ---------- Página gracias / 404 ---------- */
.full-center{min-height:100svh;display:flex;align-items:center}
.full-center .wrap{width:100%}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .nav-links{
    position:fixed;inset:0;background:var(--navy-2);
    flex-direction:column;justify-content:center;gap:2rem;font-size:1.3rem;
    opacity:0;visibility:hidden;transition:opacity var(--t-fast),visibility var(--t-fast);
  }
  .nav-links.is-open{opacity:1;visibility:visible}
  .nav-burger{display:flex;z-index:1001}
  .nav-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-burger.is-open span:nth-child(2){opacity:0}
  .nav-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-drop-menu{position:static;transform:none;opacity:1;visibility:visible;border:none;background:none;padding:0;text-align:center;margin-top:.8rem}
  .nav-drop>a::after{content:""}
  .nav-cta{display:none}

  .bifurca,.unidades,.dual,.quien,.form-grid,.cred{grid-template-columns:1fr}
  .pruebas,.tarjetas-3,.conexion{grid-template-columns:1fr;gap:1.6rem}
  .footer-top{grid-template-columns:1fr;gap:2rem}
  .cred{gap:2rem}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html.js [data-reveal]{opacity:1;transform:none}
  body::after{animation:none}
}